Sa'id bin Jubayr narrates from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that, regarding the saying of the Exalted: "We will join their descendants with them, and We will not diminish anything of their deeds" [Surah al-Tur: 21],
he said: Allah will join the believer's descendants with him in his degree in Paradise, even if they are below him in deeds. "And those who believed and whose descendants followed them in faith, We will join their descendants with them, and We will not diminish them" [Surah al-Tur: 21].
Imam al-Shafi'i (may Allah have mercy on him) said: Islam is higher and superior to all religions, so its ruling will be applied.
Al-Thawri did not hear it from Amr; others narrated it from al-Thawri, from Sama'ah, from Amr. The narration of Shu'bah from Amr is connected (mawsul).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الدعوى والبينات / 21291