Sayfî

Abu Sa'id Khudri reported Allah's Messenger having said:There is a group of jinns in Medina who accepted Islam, so he who would see anything from these occupants should warn him three times; and if he appears after that, he should kill him for he is a satan

Sahih Müslim ·Selam ·Hadis 5841 ·machine translation (native_alignment)

Asma' b. 'Ubaid reported about a person who was called as-Sa'ib having said:We visited Abu Sa'id Khudri. When we had been sitting (with him) we heard a stir under his bed. When we looked we found a big snake, the rest of the hadith is the same. And in this Allah's Messenger (ﷺ) is reported to have said: Verily in these houses there live aged (snakes), so when you see one of them, make life hard for it for three days, and if it goes away (well and good), otherwise kill it for (in that case) it would be a nonbeliever. And he (the Holy Prophet) said (to his Companions): Go and bury your companion (who had died by the snake bite)

Sahih Müslim ·Selam ·Hadis 5840 ·machine translation (native_alignment)

It was narrated from Muhammad bin Saifi that the Messenger of Allah (ﷺ) said to us on the Day of ‘Ashura’:“Has anyone among you eaten today?” We said: “Some of us have eaten and some of us have not.” He said: “Complete the rest of your day (i.e., do not eat for the rest of the day), whoever has eaten and whoever has not eaten. And send word to the people of the suburbs to complete the rest of their day.” He was referring to the people of the suburbs around Al-Madinah

İbn Mace ·Oruç (Sıyam) ·Hadis 1735 ·machine translation (native_alignment)

It was narrated that Muhammad bin Saifi said:“I slaughtered two rabbits with a sharp-edges stone and brought them to the Prophet (ﷺ), and he told me to eat them.”

İbn Mace ·Kesim ·Hadis 3175 ·machine translation (native_alignment)