WE RELATE FROM the Ṣaḥīḥs of al-Bukhārī and Muslim that Ibn Mas‘ūd 
narrated that a man invited the Prophet 
for a meal which he had prepared. He was the fifth of five [people to be invited]. A man followed them. When he came to the door, the Prophet said: “This man followed us. Give him permission if you wish; otherwise he will go back.” He said: “I give him permission, Messenger of Allah.” [1].
narrated that a man invited the Prophet for a meal which he had prepared. He was the fifth of five [people to be invited]. A man followed them. When he came to the door, the Prophet said: “This man followed us. Give him permission if you wish; otherwise he will go back.” He said: “I give him permission, Messenger of Allah.” [1].References
[1] Al-Bukhārī (5343), Muslim (2036), and at-Tirmidhī (1099).