Is it permissible for women to attend Tarawih prayer in the mosque?
Yes, it is permissible for women to attend Tarawih prayer in the mosque, provided they observe modesty, proper covering, and avoid mixing with men.
The Prophet ﷺ said: "Do not prevent the female servants of Allah from the mosques of Allah." [Bukhari and Muslim]
What is the ruling of Islamic Law on supplicating with other than the transmitted (Ma'thur) supplications in prayer?
All praise is due to Allah, and peace and blessings be upon our master, the Messenger of Allah.
It is permissible to supplicate (make du'a) during the prayer for anything from the affairs of religion or worldly life, and the prayer is not invalidated by doing so.
Shaykh al-Islam, the Imam an-Nawawi, may Allah have mercy on him, says: "Our madhhab [i.e., the Shafi'i madhhab] holds that it is permissible for a person to supplicate during it [the prayer] with anything that is permissible to supplicate with outside the prayer, from the affairs of religion or worldly life. He may say: 'O Allah, grant me wholesome sustenance, offspring, a house, and a beautiful young wife' — describing her; or: 'O Allah, free so-and-so from prison,' or 'destroy so-and-so,' and other such things — and none of this invalidates his prayer according to us. And this is also the view of Malik, ath-Thawri, Abu Thawr, and Ishaq." [Al-Majmu', Vol.3/P.454]. And Allah, the Exalted, knows best.
Is it permissible to purchase the Udhiyah on installments?
It is permissible to purchase the sacrificial animal (uḍḥiyyah) on installments or by borrowing its price. However, it is not recommended for the poor to do so, because they are not required to offer a sacrifice, and Allah does not burden a soul beyond its capacity. If doing so would lead to negligence in providing for one's dependents (nafaqah wājibah), then giving precedence to obligatory maintenance over borrowing to buy the sacrifice is appropriate. This is based on the saying of the Prophet (peace and blessings be upon him): "It is sufficient sin for a person to withhold food from those whom he is responsible to support."
Furthermore, the sacrifice is valid from one who has a debt, but it is preferable (awlā) to repay the debt first, especially if the debt is due immediately (ḥāll). And Allah Almighty knows best.
I wish to purchase an online account (a gaming account), and its ownership will be transferred to me. However, my friend will purchase it on my behalf, and I will repay him in deferred installments with an added profit margin to account for the installment sale. What is the ruling of Islamic Law on this transaction?
All praise is due to Allah, and peace and blessings be upon our master, the Messenger of Allah.
The ruling on selling electronic games depends on the ruling of the game itself: if the game is permissible, then selling it is likewise permissible. However, if the game contains Sharia violations that render playing it impermissible, then selling it in that case is neither valid nor permissible. Therefore, we advise the necessity of reviewing the Sharia guidelines for electronic games set forth in Fatwa No. (3369).
Accordingly, if the game is permissible, a person may purchase it, take legal possession of it, and subsequently sell it in deferred installments for a price higher than its purchase price. The General Iftaa' Department has permitted dealing through Murabaha, while emphasizing the necessity of observing the Sharia conditions required for this transaction; please refer to Fatwa No. (2861). And Allah Almighty knows best.