It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever comes to me as a visitor, with no need moving him (to travel) other than visiting me, it becomes a right upon me that I be his intercessor on the Day of Resurrection."
Hadith Referenceالمعجم الأوسط / باب العين / 4546
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 13149»