(41) باب كَرَاهِيَةِ تَأْخِيرِ الصَّلاَةِ عَنْ وَقْتِهَا الْمُخْتَارِ وَمَا يَفْعَلُهُ الْمَأْمُومُ إِذَا أَخَّرَهَا الإِمَامُ
Abu Dharr reported:
(The Messenger of Allah) said: How would you, or how would thou, act if you survive to live among people who defer prayer beyond the (prescribed) time? (The narrator said: Allah and His Messenger know best). whereupon he said: Observe prayer at its prescribed time, but if the Iqama is pronounced for (congregational) prayer, then observe prayer along with them. for herein is an excess of virtue.
Reference: Sahih Muslim 648 f
In-book reference: Book 5, Hadith 306
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1358