(51) باب الأَوْقَاتِ الَّتِي نُهِيَ عَنِ الصَّلاَةِ، فِيهَا .
Abu Sa'id al-Khudri reported Allah's Messenger (ﷺ) as saying:
No prayer is valid after the 'Asr prayer till the sun sets and no prayer is valid after the dawn prayer till the sun rises. (IT)
Reference (IT): Sahih Muslim 827 (IT)
In-book reference (IT): Book 6, Hadith 351 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1805 (IT)