Yahya: from Khidash, from Aban ibn Abi Ayyash, from 'Ata' who said: "Whoever is asked about knowledge that he possesses and then conceals it, shall be bridled on the Day of Resurrection with a bridle of fire." [Verses 188-189]
يَحْيَى: عَنْ خِدَاشٍ، عَنْ أَبَانَ بْنِ أَبِي عَيَّاشٍ، عَنْ عَطَاءٍ قَالَ: ((مَنْ سُئِلَ عَنْ عِلْمٍ عِنْدَهُ فَكَتَمَهُ؛ أُلْجِمَ يَوْمَ الْقِيَامَةِ بلجام من نَار)). [آيَة ١٨٨ - ١٨٩]