It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) was asked about the People of al-A'raf, and he (peace and blessings be upon him) said: "They are people who were killed in the path of Allah while they were disobedient to their parents. Their martyrdom prevented them from entering Hell, and their disobedience prevented them from entering Paradise. So they will remain standing on a wall between Paradise and Hell until their fat melts and their flesh withers, until Allah Almighty finishes the reckoning of all creation. Then, when He has finished the reckoning of creation, He will cover them with His special mercy, and they will be admitted into Paradise."
No one narrated this hadith from Zayd bin Aslam (may Allah have mercy on him) except his son Abd al-Rahman (may Allah have mercy on him), and no one from Abd al-Rahman (may Allah have mercy on him) except Muhammad bin Makhlad (may Allah have mercy on him); and it is not narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) except with this chain.
Hadith Referenceالمعجم الأوسط / باب الألف / 3053
Hadith Takhrij«أخرجه الطبراني فى «الصغير» برقم: 666، والطبراني فى «الأوسط» برقم: 4644»