This hadeeth comes under the following chapter: FORBIDDANCE IN CALLING ONE (OTHER THAN ALLAAH'S APOSTLE) WITH THE KUNYA OF ABU'L-QASIM AND THE FACT PERTAINING TO GOOD NAMES
Jabir b. Abdullah reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Give the name after my name, but do not give (the kunya of Abu'l-Qasim after my) kunya, for I am Abu'l-Qasim (in the sense) that I distribute amongst you (the spoils of war) and disseminate the knowledge (of revelation). This hadith has been transmitted on the authority of Abu Bakr but with a slight variation of wording.