Musnad Ahmad 31:240

Yahya ibn Ishaq narrated to us, Sharik narrated to us, from Qays ibn Wahb and Abu Ishaq, from Abu al-Wadak, from Abu Sa’id al-Khudri, that the Prophet (peace and blessings of Allah be upon him) said regarding the captives of Awtas: "Do not have intercourse with a pregnant woman until she delivers, nor with a non-pregnant woman until she has had one menstrual cycle." Harun narrated to us—Abdullah ibn Ahmad said: And I heard it myself from Harun—Ibn Wahb narrated to us, he said: ‘Amr ibn al-Harith informed me, from Bukayr ibn al-Ashajj, from ‘Ubaydah ibn Musafi’, from Abu Sa’id al-Khudri, who said: While the Messenger of Allah (peace and blessings of Allah be upon him) was distributing something, a man came forward and leaned over him. The Messenger of Allah (peace and blessings of Allah be upon him) poked him with a date-stalk he had with him, wounding his face. The Messenger of Allah (peace and blessings of Allah be upon him) said to him: "Come and take retribution." He said: "I have pardoned you, O Messenger of Allah." Hasan ibn Musa narrated to us, Ibn Lahi’ah narrated to us, Darraj narrated to us, from Abu al-Haytham, from Abu Sa’id al-Khudri, from the Messenger of Allah (peace and blessings of Allah be upon him), who said: "If one of you were to work inside a solid rock that has no door and no opening, his work would come out to the people, whatever it may be." And from the Messenger of Allah (peace and blessings of Allah be upon him): "If a bucket of *ghassaq* (the discharge of the people of Hell) were poured into the world, it would cause the people of the world to stink." And from the Messenger of Allah (peace and blessings of Allah be upon him) that he said: "The earth will consume everything of a human being except his tailbone." It was said: "And what is it like, O Messenger of Allah?" He said: "Like a mustard seed, from which you will grow."