Sayyiduna Sahl bin Hunayf (may Allah be pleased with him) narrates: the Prophet (peace and blessings be upon him) said: "Whoever performs ablution (wudu) and does it well, then enters the Mosque of Quba and prays four rak'ahs in it, that will be equal to freeing a slave."
(Allamah al-Haythami says:) I say:
Ibn Majah and others recorded it, and they reported the words: "It will be equal to performing Umrah," whereas here the words are: "It will be equal to freeing a slave."
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Musa bin Ubaydah, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5899
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير ( 5560) ، أخرجه سنن ابن ماجه برقم: 1412، وأخرجه المعجم الكبير للطبراني برقم: 5560، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 964/3»