Hadith 442
Chapter 160: Whoever Sleeps Through The Prayer (Time) Or Forgets (To Pray) - كتاب الصلاة
حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا هَمَّامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " مَنْ نَسِيَ صَلاَةً فَلْيُصَلِّهَا إِذَا ذَكَرَهَا لاَ كَفَّارَةَ لَهَا إِلاَّ ذَلِكَ " .
Anas b. Malik reported the Prophet (ﷺ) as saying:
If any one forgets a prayer or oversleeps, he should observe it when he remembers it ; there is no expiation for it except that.
Reference : Sunan Abi Dawud 442
In-book reference : Book 2, Hadith 52