Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "Who are these people about whom Allah Almighty has said: 'In it (the mosque) are men who love to purify themselves thoroughly, and Allah Almighty loves those who purify themselves thoroughly.'" He said: They are the people who perform istinja (cleansing) with water and who do not remain asleep the whole night.
Imam al-Tabarani recorded this narration in al-Mu'jam al-Kabir; its chain contains a narrator, Wasil bin al-Sa'ib, and he is da'if (weak). (Allamah al-Haythami says:) I say: Imam Ibn Majah has recorded the hadith reported from Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him), but without these words: "and they do not remain asleep the whole night."
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطهارة / 1061
Hadith Gradingمحدثین:إسنادہ صحیح۔
Hadith Takhrij«أخرجه المستدرك على الصحيحين برقم: 699، وأخرجه المعجم الكبير للطبراني برقم: 4070، 7555، وأخرجه المعجم الأوسط للطبراني برقم: 3031، وأخرجه المطالب العالية بزوائد المسانيد الثمانية برقم: 3620، وأخرجه إتحاف الخيرة المهرة بزوائد المسانيد العشرة برقم: 458، 5723»