It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "There is no Muslim servant who goes to visit a brother of his purely for the sake of Allah's pleasure but a caller from the heaven calls out to him: 'This walk of yours is blessed, and Paradise has been made pleasant for you.' And Allah Almighty says in the dominion of His Throne: 'He visited for My sake, and his hospitality is upon Me, so I am not pleased with any hospitality for him less than Paradise.'"
Hadith Referenceمسند أبي يعلى الموصلي / مسند أنس بن مالك / 4140
Hadith Takhrij«قال سعيد بن محمد السناري: ضعيف» «أخرجه الضياء في "المختارة" [رقم 2679، 2680]، وأبو نعيم في "الحلية" [3/ 107]، وابن قدامة في "المتحابين في الله" [رقم 25]، والبزار [رقم 1918/ كشف]، وابن عدي في "الكامل" [6/ 414]، وغيرهم، مسند ابویعلیٰ ترقیم الاثری: 4126»