Sahih Muslim 614
Sahih Muslim · Book 5: The Book of Mosques and Places of Prayer · The times of the five prayers
Abu Musa reported on the authority of his father that an Inquirer came to the Prophet (ﷺ) and asked him about the times of prayers, and the rest of the hadith is the same (as narrated above) but for these words:
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا وَكِيعٌ ، عَنْ بَدْرِ بْنِ عُثْمَانَ ، عَنْ أَبِي بَكْرِ بْنِ أَبِي مُوسَى ، سَمِعَهُ مِنْهُ، عَنْ أَبِيهِ ، أَنَّ سَائِلاً، أَتَى النَّبِيَّ صلى الله عليه وسلم فَسَأَلَهُ عَنْ مَوَاقِيتِ الصَّلاَةِ . بِمِثْلِ حَدِيثِ ابْنِ نُمَيْرٍ غَيْرَ أَنَّهُ قَالَ فَصَلَّى الْمَغْرِبَ قَبْلَ أَنْ يَغِيبَ الشَّفَقُ فِي الْيَوْمِ الثَّانِي .
" On the second day he (the Holy Prophet) observed the evening prayer before the disappearance of the twilight."