What is the ruling on congratulating others on the arrival of Ramadan?
Congratulating others on the arrival of Ramadan is permissible.
If someone does it to express their love for worship and the blessings of Ramadan, and congratulates their fellow Muslim, they have done something good.
The Prophet ﷺ said: "Shall I not tell you something that, if you do it, you will love one another? Spread peace (Salam) among yourselves." [Narrated by Muslim]
Giving Salam is a prayer for peace and safety.
What is the ruling on swallowing saliva while fasting?
It is permissible for a fasting person to swallow their saliva because avoiding it would cause undue hardship and excessive strictness in religion. Islam discourages such excessiveness since Allah the Almighty intends ease for His followers and does not intend to put them in hardship.
What is the ruling on using an inhaler while fasting?
Using an inhaler through the nose or mouth breaks the fast because the medication in these inhalers is intended to reach the lungs, which are considered part of the body cavity (jauf).
● If a person needs to use it occasionally, they may use it while fasting, continue refraining from food and drink for the rest of the day, and make up for the missed fast later.
● If a person needs to use it daily, they may use it while fasting, continue refraining from food and drink, and pay fidyah (feeding one needy person per missed day).
What is the ruling on istinja' after urination, and is it done with water and soap or with water only?
Istinja' from urine and stool is obligatory. It is permissible to perform istinja' with water alone, or with toilet paper alone. The best way is with toilet paper then water. If one wishes to suffice with one of them, then water is better. And Allah the Almighty knows best.