Sunan Abi Dawud 2791
سنن أبي داود#2791SahihNarrated Umm Salamah: The Prophet (ﷺ) as saying: If anyone has sacrificial animal and intends to sacrifice it, and he sights the new moon of Dhul-Hajjah, he must not take any of his hair and nails until he sacrifices Abu Dawud said: The name of 'Amr b. Muslim in the chain narrated by Malik and Muhammad b. 'Amr is disputed. Some say that it is 'Umar and the majority holds that it is 'Amr. Abu Dawud said: He is 'Amr b. Muslim b. Ukaimah al-Laithi al-Jundu'i
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan Sahih
Muhammad Muhyi Al-Din Abdul HamidHasan Sahih
Shuaib Al ArnautHasan
Zubair Ali ZaiSahih Muslim (1977)
In-book reference: 16:4