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 men who were killed in the path of Allah while they were disobedient to their parents. Their martyrdom kept them from entering the Fire, and their disobedience kept them from entering Paradise. So they will be upon a wall between Paradise and Hell until their flesh and fat melt away, until Allah Almighty finishes the reckoning of all creatures. Then, when Allah has finished the reckoning of His creation and none remain but them, Allah will cover them with His mercy and admit them into Paradise by His mercy."
Hadith Referenceالمعجم الأوسط / باب العين / 4644
Hadith Takhrij«أخرجه الطبراني فى «الصغير» برقم: 666، والطبراني فى «الأوسط» برقم: 3053»