ßÊÇÈ ÇáÇÓÊÆÐÇä : Hadeeth No:5874 : Abu Bakra: Allah's Apostle said, "Shall I inform you of the biggest of the great sins?" They said, "Yes, O Allah's Apostle!" He said, "To join partners in worship with Allah, and to be undutiful to one's parents. "...

ßÊÇÈ ÇáÃÏÈ : Hadeeth No:5715 : Abu Mas'ud: A man came to the Prophet and said "I keep away from the morning prayer only because such and such person prolongs the prayer when he leads us in it. The narrator added: I had never seen Allah's Apostle more furious in giving advice than he was on that day. He said, "O pe...