The word حاج in the Quran

وَإِذَا لَقُوا۟ ٱلَّذِينَ ءَامَنُوا۟ قَالُوٓا۟ ءَامَنَّا وَإِذَا خَلَا بَعْضُهُمْ إِلَىٰ بَعْضٍ قَالُوٓا۟ أَتُحَدِّثُونَهُم بِمَا فَتَحَ ٱللَّهُ عَلَيْكُمْ لِيُحَآجُّوكُم بِهِۦ عِندَ رَبِّكُمْ أَفَلَا تَعْقِلُونَ ۝٧٦

And when they meet those who believe, they say, "We have believed"; but when they are alone with one another, they say, "Do you talk to them about what Allāh has revealed to you so they can argue with you about it before your Lord?" Then will you not reason?

قُلْ أَتُحَآجُّونَنَا فِى ٱللَّهِ وَهُوَ رَبُّنَا وَرَبُّكُمْ وَلَنَآ أَعْمَٰلُنَا وَلَكُمْ أَعْمَٰلُكُمْ وَنَحْنُ لَهُۥ مُخْلِصُونَ ۝١٣٩

Say, [O Muḥammad], "Do you argue with us about Allāh while He is our Lord and your Lord? For us are our deeds, and for you are your deeds. And we are sincere [in deed and intention] to Him."

أَلَمْ تَرَ إِلَى ٱلَّذِى حَآجَّ إِبْرَٰهِـۧمَ فِى رَبِّهِۦٓ أَنْ ءَاتَىٰهُ ٱللَّهُ ٱلْمُلْكَ إِذْ قَالَ إِبْرَٰهِـۧمُ رَبِّىَ ٱلَّذِى يُحْىِۦ وَيُمِيتُ قَالَ أَنَا۠ أُحْىِۦ وَأُمِيتُ قَالَ إِبْرَٰهِـۧمُ فَإِنَّ ٱللَّهَ يَأْتِى بِٱلشَّمْسِ مِنَ ٱلْمَشْرِقِ فَأْتِ بِهَا مِنَ ٱلْمَغْرِبِ فَبُهِتَ ٱلَّذِى كَفَرَ وَٱللَّهُ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّٰلِمِينَ ۝٢٥٨

Have you not considered the one who argued with Abraham about his Lord [merely] because Allāh had given him kingship? When Abraham said, "My Lord is the one who gives life and causes death," he said, "I give life and cause death." Abraham said, "Indeed, Allāh brings up the sun from the east, so bring it up from the west." So the disbeliever was overwhelmed [by astonishment], and Allāh does not guide the wrongdoing people.

فَإِنْ حَآجُّوكَ فَقُلْ أَسْلَمْتُ وَجْهِىَ لِلَّهِ وَمَنِ ٱتَّبَعَنِ وَقُل لِّلَّذِينَ أُوتُوا۟ ٱلْكِتَٰبَ وَٱلْأُمِّيِّـۧنَ ءَأَسْلَمْتُمْ فَإِنْ أَسْلَمُوا۟ فَقَدِ ٱهْتَدَوا۟ وَّإِن تَوَلَّوْا۟ فَإِنَّمَا عَلَيْكَ ٱلْبَلَٰغُ وَٱللَّهُ بَصِيرٌۢ بِٱلْعِبَادِ ۝٢٠

So if they argue with you, say, "I have submitted myself to Allāh [in Islām], and [so have] those who follow me." And say to those who were given the Scripture and [to] the unlearned, "Have you submitted yourselves?" And if they submit [in Islām], they are rightly guided; but if they turn away - then upon you is only the [duty of] notification. And Allāh is Seeing of [His] servants.

فَمَنْ حَآجَّكَ فِيهِ مِنۢ بَعْدِ مَا جَآءَكَ مِنَ ٱلْعِلْمِ فَقُلْ تَعَالَوْا۟ نَدْعُ أَبْنَآءَنَا وَأَبْنَآءَكُمْ وَنِسَآءَنَا وَنِسَآءَكُمْ وَأَنفُسَنَا وَأَنفُسَكُمْ ثُمَّ نَبْتَهِلْ فَنَجْعَل لَّعْنَتَ ٱللَّهِ عَلَى ٱلْكَٰذِبِينَ ۝٦١

Then whoever argues with you about it after [this] knowledge has come to you - say, "Come, let us call our sons and your sons, our women and your women, ourselves and yourselves, then supplicate earnestly [together] and invoke the curse of Allāh upon the liars [among us]."

يَٰٓأَهْلَ ٱلْكِتَٰبِ لِمَ تُحَآجُّونَ فِىٓ إِبْرَٰهِيمَ وَمَآ أُنزِلَتِ ٱلتَّوْرَىٰةُ وَٱلْإِنجِيلُ إِلَّا مِنۢ بَعْدِهِۦٓ أَفَلَا تَعْقِلُونَ ۝٦٥

O People of the Scripture, why do you argue about Abraham while the Torah and the Gospel were not revealed until after him? Then will you not reason?

هَٰٓأَنتُمْ هَٰٓؤُلَآءِ حَٰجَجْتُمْ فِيمَا لَكُم بِهِۦ عِلْمٌ فَلِمَ تُحَآجُّونَ فِيمَا لَيْسَ لَكُم بِهِۦ عِلْمٌ وَٱللَّهُ يَعْلَمُ وَأَنتُمْ لَا تَعْلَمُونَ ۝٦٦

Here you are - those who have argued about that of which you have [some] knowledge, but why do you argue about that of which you have no knowledge? And Allāh knows, while you know not.

وَلَا تُؤْمِنُوٓا۟ إِلَّا لِمَن تَبِعَ دِينَكُمْ قُلْ إِنَّ ٱلْهُدَىٰ هُدَى ٱللَّهِ أَن يُؤْتَىٰٓ أَحَدٌ مِّثْلَ مَآ أُوتِيتُمْ أَوْ يُحَآجُّوكُمْ عِندَ رَبِّكُمْ قُلْ إِنَّ ٱلْفَضْلَ بِيَدِ ٱللَّهِ يُؤْتِيهِ مَن يَشَآءُ وَٱللَّهُ وَٰسِعٌ عَلِيمٌ ۝٧٣

And do not trust except those who follow your religion." Say, "Indeed, the [true] guidance is the guidance of Allāh. [Do you fear] lest someone be given [knowledge] like you were given or that they would [thereby] argue with you before your Lord?" Say, "Indeed, [all] bounty is in the hand of Allāh - He grants it to whom He wills. And Allāh is all-Encompassing and Wise."

وَحَآجَّهُۥ قَوْمُهُۥ قَالَ أَتُحَٰٓجُّوٓنِّى فِى ٱللَّهِ وَقَدْ هَدَىٰنِ وَلَآ أَخَافُ مَا تُشْرِكُونَ بِهِۦٓ إِلَّآ أَن يَشَآءَ رَبِّى شَيْـًٔا وَسِعَ رَبِّى كُلَّ شَىْءٍ عِلْمًا أَفَلَا تَتَذَكَّرُونَ ۝٨٠

And his people argued with him. He said, "Do you argue with me concerning Allāh while He has guided me? And I fear not what you associate with Him [and will not be harmed] unless my Lord should will something. My Lord encompasses all things in knowledge; then will you not remember?

أَجَعَلْتُمْ سِقَايَةَ ٱلْحَآجِّ وَعِمَارَةَ ٱلْمَسْجِدِ ٱلْحَرَامِ كَمَنْ ءَامَنَ بِٱللَّهِ وَٱلْيَوْمِ ٱلْـَٔاخِرِ وَجَٰهَدَ فِى سَبِيلِ ٱللَّهِ لَا يَسْتَوُۥنَ عِندَ ٱللَّهِ وَٱللَّهُ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّٰلِمِينَ ۝١٩

Have you made the providing of water for the pilgrim and the maintenance of al-Masjid al-Ḥarām equal to [the deeds of] one who believes in Allāh and the Last Day and strives in the cause of Allāh? They are not equal in the sight of Allāh. And Allāh does not guide the wrongdoing people.

وَٱلَّذِينَ يُحَآجُّونَ فِى ٱللَّهِ مِنۢ بَعْدِ مَا ٱسْتُجِيبَ لَهُۥ حُجَّتُهُمْ دَاحِضَةٌ عِندَ رَبِّهِمْ وَعَلَيْهِمْ غَضَبٌ وَلَهُمْ عَذَابٌ شَدِيدٌ ۝١٦

And those who argue concerning Allāh after He has been responded to - their argument is invalid with their Lord, and upon them is [His] wrath, and for them is a severe punishment.