"It is narrated by Mu‘ādh bin Jabal that he heard the Messenger of Allāh (صلى الله عليه وآله وسلم) saying:

   Allāh the Exalted and Almighty said: ‘My love has been made obligatory for those two persons who love each other on My count and spend time together for My sake, and see each other for My sake and give money to each other generously for My sake.’"

This sahīh (sound) hadīth narrated by Mālik bin Anas in al-Muwattā, b. of sha‘ar (hair) ch.5 (2:954#16), and Ibn ‘Abd-ul-Barr said its chain is good. Ahmad bin Hambal also transmitted it in his Musnad (5:233); Hākim in al-Mustadrak (4:169), who graded it sahīh, and also confirmed by Dhahabī; Baghawī in Sharh-us-sunnah, (13:49-50#3463); Khatīb Tabrīzī in Mishkāt-ul-masābīh, b. of ādāb (good manners) ch.16 (3:75#5011). [src: Ch3 of Beseeching for Help, Tahir-ul-Qadri]

 "Truly, Allah does not remove Sacred Knowledge by taking it out of servants, but rather by taking back the souls of Islamic scholars [in death], until, when He has not left a single scholar, the people take the ignorant as leaders, who are asked for and who give Islamic legal opinion without knowledge, misguided and misguiding"

(Sahih Bukhari - Fath al-Bari, 1.194, hadith 100) [src: suhba.org]