(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. (RU)
Reference (RU): Sahih Muslim 827 (RU)
In-book reference (RU): Book 6, Hadith 351 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1805 (RU)