Ubandlululo ngumkhuba wokucwasa nokubandlulula abantu ngokusekelwe ohlotsheni lwabo, imvelaphi yabo yobuzwe, noma izici zabo zomzimba. U-Islam ufundisa ukuthi bonke abantu badalwe ngokulinganayo nokuthi umehluko onjengobuhlanga, ulimi, noma ibala awukwazi ukusetshenziswa njengendlela yokwenza abanye abantu babe ngcono kunabanye. Lesi sigaba sibheka indawo yobandlululo ku-Islam, umqondo ka-Islam wokulingana nobudlelwane, kanye nezimfundiso zokuthi bonke abantu kufanele bahlonishwe. Ngaphezu kwalokho, kugcizelelwa isidingo sokulwa nobandlululo ngamazwi kaMphrofethi (ukuthula kube kuye) athi, “Bonke abantu badalwe ku-Adamu.” U-Islam uyabunqaba bonke ubuhlobo bobandlululo futhi uqaphela ukuthi bonke abantu banamalungelo alinganayo. Kulesi sigaba, kuxoxwa ngezindlela zokulwa nobandlululo, nokuthi ubandlululo lunganqotshwa kanjani ngezimiso zika-Islam zokubekezelelana nobulungiswa.