CHAPTER: Regarding when a man parts from another, then meets him again, he should greet him with the salam.
Narrated Abu Hurairah: When one of you meets his brother, he should salute him, then if he meets him again after a tree, wall or stone has come between them, he should also salute him. Muawiyah said: Abd al-Wahhab bin Bakht transmitted a similar tradition to me from Abu al-Zinad, from al-Araj, from Abu Hurairah, from the Messenger of Allah صلی اللہ علیہ وسلم.
Narrated Abdullah ibn Abbas: Umar came to the Prophet صلی اللہ علیہ وسلم when he was in his wooden oriel, and said to him: Peace be upon you. Messenger of Allah, peace be upon you! May Umar enter ?