It is narrated from Sayyiduna Buraydah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Indeed, in Paradise there are lofty chambers whose outsides can be seen from within and whose insides can be seen from without; Allah Almighty has prepared them for those who love one another for His pleasure, who visit one another for His sake, and who spend on one another for His good pleasure."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated these two hadiths from Sa'id (may Allah have mercy on him) except Uwayn (may Allah have mercy on him), and Isma'il (may Allah have mercy on him) is alone in narrating them."
Hadith Referenceالمعجم الأوسط / باب الألف / 2903
Hadith Gradingمحدثین:إسناده ضعيف لضعف إسماعيل بن سيف
Hadith Takhrij«قال الهيثمي: فيه إسماعيل بن سيف وهو ضعيف «مجمع الزوائد ومنبع الفوائد، ج 10، ص 278»»