What is the ruling on performing voluntary (nafl) prayer during the time of istiwā' (the sun's zenith) on the day of Jumu‘ah (Friday), and is this ruling specific to someone who has come to the mosque to perform the Jumu‘ah prayer?
All praise is due to Allah, and peace and blessings be upon our master, the Messenger of Allah ﷺ.
It is permissible to perform voluntary (nafl) prayer during the time of istiwā' (the sun's zenith, i.e., its highest point before noon) on the day of Jumu‘ah (Friday) — whether for someone who is attending the Friday prayer or someone who is not, and whether they are among the people obligated to attend it or not.
It is stated in Mughnī al-Muḥtāj (Vol.1/P.310): "The more correct position (al-aṣaḥḥ) is that prayer is permissible during this time without restriction — regardless of whether the person will be attending the Jumu‘ah prayer or not." And Allah, the Exalted, knows best.
What is the ruling of Islamic Law on working in hotels?
All praise is due to Allah, and peace and blessings be upon our master, the Messenger of Allah.
It is permissible to work in hotels, restaurants, and shops in jobs that involve no direct handling of forbidden things and do not assist in them, such as administrative work.
As for jobs in which one directly handles forbidden things or assists in them, such as serving, transporting, or purchasing alcohol, receiving payment for it, or agreeing to buy it, working in them is forbidden, based on the saying of Allah the Mighty and Majestic: “And cooperate in righteousness and piety, but do not cooperate in sin and aggression. And fear Allah; indeed, Allah is severe in penalty.” [al-Māʾidah/2]
The basic nature of the work of hotels and restaurants is permissible, and the sin of any forbidden element that arises incidentally in some of what takes place in a hotel or restaurant is borne by those who run it.
The scholars have also permitted dealing with one whose lawful wealth is mixed with unlawful wealth, as previously explained in Fatwa no. (
2697). And Allah Almighty knows best.
What is the ruling on performing dry ablution (tayammum) on a wall or stone?
One of the conditions for tayammum is that it be with pure, clean dust (soil). It is not valid to perform tayammum by striking stones, a wall, sand that has no dust (i.e., that does not produce dust), pebbles alone, or clay, as these are not from the earth or its same category. And Allah the Almighty knows best.
Is a woman`s prayer considered invalid if non-Mahrams (marriageable men) saw her offering it?
A woman`s prayer isn`t invalidated if non-Mahrams saw her offering it, but she had better pray in isolation.