四輩弟子(sì bèi dì zǐ)　“the four groups of Buddhist disciples, i.e. monks, nuns, laymen, and laywomen”　

not found at HD. 3.598.; not found at DK. 3.35.; Krsh(1998) , s.v.;

STF. 197a8.佛在四輩弟子───比丘、比丘尼、優婆塞、優婆夷中，説《薩曇分陀利》(p);