Spending the nights of the 11th, 12th (and optionally 13th) in منیٰ is واجب; being present for the majority of each night fulfills the requirement, and missing it without excuse requires fidyah.
Yes, staying overnight in منیٰ during the Days of Tashreeq is considered wajib (واجب) by the majority of scholars. Specifically, حجاج should spend the nights of the 11th and 12th of Dhul Hijjah in منیٰ, with the 13th night being optional (as early departure on the 12th is permitted). The requirement is to be present in منیٰ for the majority of the night — roughly from Maghrib (sunset) to Fajr (dawn).
The tent cities of منیٰ are organized by country and حج group, with assigned camps. Life in the منیٰ tents is communal and simple — حجاج sleep in air-conditioned tents, share meals, and use their time between stoning rituals for worship, قرآن recitation, and rest. The days in منیٰ are spiritually significant as they are the Days of Tashreeq, during which نبی کریم (صلی اللہ علیہ وسلم) said: 'The Days of Tashreeq are days of eating, drinking, and remembrance of Allah.'
If a حاجی does not stay overnight in منیٰ without a valid excuse, a fidyah (sacrifice of a sheep) is required جمہور علماء کے مطابق. Valid excuses include: genuine inability to find space in منیٰ (which does occur due to overcrowding), medical emergencies, or being assigned accommodation outside منیٰ boundaries by the authorities. Those whose camps are technically outside منیٰ's boundaries should still spend as much time as possible within the boundaries.
نبی کریم (صلی اللہ علیہ وسلم) said: 'The Days of Tashreeq are days of eating, drinking, and remembrance of Allah Most High.'
نبی کریم (صلی اللہ علیہ وسلم) said: 'The Days of Tashreeq are days of eating, drinking, and remembrance of Allah Most High.'
Source: Ibn Qudamah, Al-Mughni; al-Nawawi, Al-Majmu
نبی کریم (صلی اللہ علیہ وسلم) said: 'The Days of Tashreeq are days of eating, drinking, and remembrance of Allah Most High.'
Sahih Muslim #1141 (sahih)