Ismāʿīl b. Ibrāhīm narrated to us: From Ayyūb: From Ibn Abī Mu | IlmTest

Ismāʿīl b. Ibrāhīm narrated to us: From Ayyūb: From Ibn Abī Mulaykah, who said: a man asked Ibn ʿAbbās (may Allah be pleased with him) about the Āyah: {A Day, the extent of which is a thousand years of those which you count} [32:5].
حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ، عَنْ أَيُّوبَ، عَنِ ابْنِ أَبِي مُلَيْكَةَ، قَالَ: سَأَلَ رَجُلٌ ابْنَ عَبَّاسٍ عَنْ {يَوْمٍ كَانَ مِقْدَارُهُ أَلْفَ سَنَةٍ} [السجدة: 5]؟

So Ibn ʿAbbās replied: “And what about [the Āyah]: {A Day, the extent of which is fifty thousand years} [70:4]?“
فَقَالَ ابْنُ عَبَّاسٍ: فَمَا {يَوْمٍ كَانَ مِقْدَارُهُ خَمْسِينَ أَلْفَ سَنَةٍ} [المعارج: 4]؟

The man responded: ”I asked you so that you would inform me.“
قَالَ الرَّجُلُ: إِنَّمَا سَأَلْتُكَ لَتُحَدِّثَنِّي.

Ibn ʿAbbās finally said: ”They are two days that Allah mentioned in His Book; Allah knows best about them."
فَقَالَ ابْنُ عَبَّاسٍ: «هُمَا يَوْمَانِ ذَكَرَهُمَا اللَّهُ فِي كِتَابِهِ، اللَّهُ أَعْلَمُ بِهِمَا».

So he (ie: Ibn ʿAbbās) hated to speak about the Book of Allah concerning that which he did not know.
فَكَرِهَ أَنْ يَقُولَ فِي كِتَابِ اللَّهِ مَا لَا يَعْلَمُ

Abū ʿUbayd al-Qāsim b. Sallām, Faḍāʾil al-Qurʾān 1/376
أبو عُبيد القاسم بن سلاّم، فضائل القرآن ١/٣٧٦
https://shamela.ws/book/12524/765

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