[Machine] The Messenger of Allah ﷺ said: "When one of you is the imam, let him shorten the prayer, for behind him are the weak, the elderly, and those in need. But when he prays alone, let him prolong the prayer as much as he wishes."
قَالَ رَسُولُ اللهِ ﷺ إِذَا كَانَ أَحَدُكُمْ إِمَامًا فَلْيُخَفِّفْ فَإِنَّهُ يَقُومُ وَرَاءَهُ الضَّعِيفُ وَالْكَبِيرُ وَذُو الْحَاجَةِ وَإِذَا صَلَّى لِنَفْسِهِ فَلْيُطَوِّلْ مَا شَاءَ