Harmalah ibn Yahya narrated to us, Ibn Wahb informed us, he said: Yunus informed me, from Ibn Shihab, he said: Abu Salamah ibn 'Abd al-Rahman informed me that he heard Abu Hurayrah say: The Messenger of Allah, peace and blessings be upon him, said: "When one of you leads the people in prayer, let him shorten it, for among the people there are the weak, the sick, and those with needs."