9 hadith found in 'Wills (Kitab Al-Wasaya)' of Sunan Abu-Dawud.

(2869) Narrated Umar ibn al-Khattab: A Companion of the Prophet (peace_be_upon_him) said: A man asked him (the Prophet): Apostle of Allah, what are the grave sins? He replied: They are nine. He then mentioned the tradition to the same effect. This version adds: "And disobedience to the Muslim parents, and to violate the sacred House, your qiblah (direction of prayer), in your life and after death.

(2875) Narrated Aisha, Ummul Mu'minin: A woman said: Apostle of Allah, my mother suddenly died; if it had not happened, she would have given sadaqah (charity) and donated (something). Will it suffice if I give sadaqah on her behalf? The Prophet (peace_be_upon_him) said: Yes, give sadaqah on her behalf.

(2877) Narrated Abdullah ibn Amr ibn al-'As: Al-'As ibn Wa'il left his will that a hundred slaves should be emancipated on his behalf. His son Hisham emancipated fifty slaves and his son Amr intended to emancipate the remaining fifty on his behalf, but he said: I should ask first the Apostle of Allah (peace_be_upon_him). He, therefore, came to the Prophet (peace_be_upon_him) and said: Apostle of Allah, my father left in his will that a hundred slaves should be emancipated on his behalf and Hisham has emancipated fifty on his behalf and fifty remain. Shall I emancipate them on his behalf? The Apostle of Allah (peace_be_upon_him) said: Had he been a Muslim and you had emancipated slaves on his behalf, or given sadaqah on his behalf, or performed the pilgrimage, that would have reached him.