It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him), explaining the saying of Allah, the Mighty and Majestic, "Remaining therein for ages (ahqab)" [Surah al-Naba': 23], said: "One huqb is a thousand months; a month is thirty days; a year is three hundred and sixty days; and a day (of that world) is equal to a thousand years by your reckoning; while the ahqab (in their total duration) come to thirty million years."
The chain of this hadith contains the narrator Ja'far bin al-Zubayr, who is matruk (abandoned) and severely weak.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب التفسير / 3775
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف » «أخرجه المعجم الكبير للطبراني برقم: 7957»