Hadith #4913General Behavior (Kitab Al-Adab) · Narrated by Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي, Ahmed bin 'Amr bin al-Sarh أحمد بن عمرو بن السرح أبو الطاهر, Haywat bin Sharih bin Safwan حيوة بن شريح بن صفوان التجيبي, Imran bin Abi Anas عمران بن أبي أنس القرشي العامري · Hasan
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.