Musnad Ahmad 17528

The Prophet (ﷺ) kept standing (in prayer) so long that the skin of his feet would crack. I asked him: "Why do you do this, while you have been forgiven of your former and latter sins?" He said, "Should I not be a grateful slave of Allah?" [Al-Bukhari and Muslim].

"‏أفلا أكون عبدًا شكورًا‏"

Narrated by Ā’ishah + 2 other versions

The Prophet (may Allah's peace and blessings be upon him) used to stand in prayer at night until the skin of his feet would crack

‘Ā'ishah and Al-Mughīrah ibn Shu‘bah (may Allah be pleased with both of them) reported: The Prophet (may Allah's peace and blessings be upon him) used to stand in prayer at night until the skin of his feet would crack. I (‘Ā'ishah) asked him: "O Messenger of Allah, why are you doing this while your…

"‏ أفلا أحب أن أكون عبداً شكوراً‏؟‏‏"

Narrated by Ā’ishah + 1 other version Explained

The Prophet (ﷺ) used to stand (in the prayer) or pray till both his feet or legs swelled. He was asked why (he offered such an unbearable prayer) and he said, "should I not be a thankful slave."

لِيُصَلِّيَ حَتَّى تَرِمُ قَدَمَاهُ أَوْ سَاقَاهُ، فَيُقَالُ لَهُ فَيَقُولُ ‏"‏ أَفَلاَ أَكُونُ عَبْدًا شَكُورًا ‏"

Narrated by Al-Mughīrah ibn Shu‘bah + 6 other versions

(Why do you undergo so much hardship despite the fact that) Allah has pardoned for you your earlier and later sins? Thereupon he said: May I not (prove myself) to be a grateful servant (of Allah)?

أَتَكَلَّفُ هَذَا وَقَدْ غَفَرَ اللَّهُ لَكَ مَا تَقَدَّمَ مِنْ ذَنْبِكَ وَمَا تَأَخَّرَ فَقَالَ ‏"‏ أَفَلاَ أَكُونُ عَبْدًا شَكُورًا ‏"

Narrated by Al-Mughīrah ibn Shu‘bah + 5 other versions

“The Messenger of Allah (ﷺ) used to pray until his feet became swollen. It was said: ‘O Messenger of Allah, Allah has forgiven you your past and future sins.’ He said: ‘Should I not be a thankful slave?’”

"‏ أَفَلاَ أَكُونُ عَبْدًا شَكُورًا ‏"

Narrated by Abu Hurayrah

"The Messenger of Allah (ﷺ) used to pray until he developed fissures in his feet."

يُصَلِّي حَتَّى تَزْلَعَ يَعْنِي تَشَقَّقُ قَدَمَاهُ ‏.‏

Narrated by Abu Hurayrah