Sahih al-Bukhari Hadith 478 – Volume 8, Book 76

English

Volume 8, Book 76, Number 478:
Narrated Al-Mughira bin Shu'ba:
The Prophet used to pray so much that his feet used to become edematous or swollen, and when
he was asked as to why he prays so much, he would say, "Shall I not be a thankful slave (to Allah)?"