‏الصلاة : Hadeeth No:944 Abu Huraira reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: When any one of you leads people in prayer, he must shorten it for among them are the weak, the infirm and those who have business to attend....

‏الزكاة : Hadeeth No:2220 This hadith has been narrated on the authority of Mandhir through another chain of transmitters. And the hadith transmitted by Ibn Mu'adh contains an addition:" He then observed the noon prayer and then gave the sermon."...