[Machine] I heard the Messenger of Allah ﷺ forbidding a man from delivering a sermon on behalf of his brother or selling something on his behalf.
سَمِعْتُ رَسُولَ اللهِ ﷺ يَنْهَى أَنْيَخْطُبَ الرَّجُلُ عَلَى خِطْبَةِ أَخِيهِ أَوْ يَبِيعَ عَلَى بَيْعِهِ