Narrator:Abdullāh ibn ‘Umar
أَخْبَرَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم رَأَى بُصَاقًا فِي جِدَارِ الْقِبْلَةِ فَحَكَّهُ ثُمَّ أَقْبَلَ عَلَى النَّاسِ فَقَالَ
" إِذَا كَانَ أَحَدُكُمْ يُصَلِّي فَلاَ يَبْصُقَنَّ قِبَلَ وَجْهِهِ فَإِنَّ اللَّهَ عَزَّ وَجَلَّ قِبَلَ وَجْهِهِ إِذَا صَلَّى "
It was narrated from Ibn 'Umar that the Messenger of Allah (ﷺ) saw some sputum on the Qiblah wall. He scrapped it off then he turned to the people and said:
"When any one of you is praying, let him not spit in front of him, for Allah is in front of him when he prays."
Reported by An-Nasa’i (No. 724), Al-Bukhari (No. 406), Muslim (No. 547a, 547b), Malik (No. 461) and Ahmad (No. 5083).