The Prophet (ﷺ) said: It is not allowable for a Muslim to keep apart from his brother for more than three days, for one who does so and dies will enter Hell.
Sunan Abi Dawud Book 43, Hadith 142
← Previous Hadith The Messenger of Allah (ﷺ) said: It is not right for a Muslim to keep apart from another Muslim for more than three days. Then when he meets him and gives three salutations, receiving during that time no response, the other bears his sin.

Sunan Abi Dawud Book 43, Hadith 141 Next Hadith → AbuKhirash heard the Messenger of Allah (ﷺ) say: If one keeps apart from his brother for a year, it is like shedding his blood.

Sunan Abi Dawud Book 43, Hadith 143