ßÊÇÈ ÇáÃÐÇä : Hadeeth No:628 : Malik bin Huwairith: Prophet said (to two persons), "Whenever the prayer time becomes due, you should pronounce Adhan and then Iqama and the older of you should lead the prayer." ...

ßÊÇÈ ÇáÚáã : Hadeeth No:94 : Anas: Whenever the Prophet asked permission to enter, he knocked the door thrice with greeting and whenever he spoke a sentence (said a thing) he used to repeat it thrice. ...