In the following sanad who heard from who:
عن الشعبي عن جرير انه سمعه.
Sahih Muslim, Kitabul Iman, number 228 (68)
Imam Sha’bi’s (rahimahullah) student; Mansur ibn ‘Abdir Rahman is saying that he acquired the Hadith from Sha’bi, who acquired it from Sayyiduna Jarir ibn ‘Abdillah (radiyallahu’anhu) by hearing it from him.
And Allah Ta’ala Knows best,
Answered by: Moulana Muhammad Abasoomar