Yahya related to me from Malik from Ibn Shihab from clsa ibn Talha that Abdullah ibn Amr ibn al-As said, "The Messenger of Allah, may Allah bless him and grant him peace, stopped for the people at Mina, and they questioned him and a man came and said to him, 'Messenger of Allah, I was unclear about what to do and I shaved before sacrificing,' and the Messenger of Allah, may Allah bless him and grant him peace, said, 'Sacrifice, and don't worry.' Then another came to him and said 'Messenger of Allah, I was unclear about what to do and I sacrificed before throwing the stones.' He advised, 'Throw, and don't worry.' " Amr continued, saying that the Messenger of Allah, may Allah bless him and grant him peace, was not asked about anything done before or after without his saying, "Do it, and don't worry."