Hadith: It is wajib (obligatory) upon my Ummah to love Abu Bakr

The Beloved Rasūl of Allâh Almighty şallAllāhu álayhi wa sallam stated,

It is wajib (obligatory) upon my Ummah to love Abū Bakr [rađiyAllāhu ánhu]

In another blessed Ĥadīth, the Beloved Prophet şallAllāhu álayhi wa sallam said,

It is wājib upon my Ummah to love Abū Bakr [rađiyAllāhu ánhu] and to be thankful to him

Reference:

Both Ĥadīths compiled in as-Sawaiq al-Muharriqa of Imām Ibn Ĥajar al-Haytamī rađiyAllāhu ánhu (d. 974h).