It is not obligatory to fast today unless it is during the month of Ramadan or a person has made a vow or oath to fast on this particular day. Otherwise, fasting on a regular day outside of Ramadan is considered voluntary and a recommended act of worship in Islam. **

Fasting on Ashura, the 10th day of Muharram in the Islamic lunar calendar, is recommended but not obligatory. It is a day of significance for Muslims, as it is believed to be the day when Prophet Musa (Moses) and the Israelites were saved from Pharaoh's tyranny. Many Muslims choose to fast on this day as a way to show gratitude and seek forgiveness for their sins. However, it is not considered a mandatory fast like Ramadan. **

Fatherhood is not obligatory for everyone. While some societies and cultures may place a strong emphasis on men becoming fathers, ultimately the decision to become a father is a personal one. Factors such as individual desires, circumstances, and beliefs all play a role in determining whether someone chooses to take on the responsibilities of fatherhood. It is important for individuals to carefully consider their readiness and willingness to become a father before making this life-changing decision. **

Fasting during the month of Rajab is not obligatory in Islam. It is considered a recommended practice, but not a mandatory one. Some Muslims choose to fast during this month as a way to seek spiritual rewards and draw closer to Allah, following the example of the Prophet Muhammad who is reported to have fasted during Rajab. However, it is ultimately a personal choice and not a requirement in Islam. **

Sunnah prayers are not obligatory in the same way as the five daily obligatory prayers (Salah). However, there are certain Sunnah prayers that are considered highly recommended and are sometimes considered obligatory in a broader sense. For example, the Sunnah prayers before or after the obligatory prayers are highly encouraged and are considered a part of the prophetic tradition. Some scholars may consider these Sunnah prayers as obligatory in the sense that neglecting them without a valid reason is considered blameworthy. Ultimately, the importance of Sunnah prayers varies among different schools of thought within Islam. **

The Sunnah, which refers to the teachings and practices of the Prophet Muhammad, is considered highly recommended and encouraged in Islam. While following the Sunnah is not obligatory like the five pillars of Islam, it is seen as a way to gain closeness to Allah and to emulate the Prophet's example. Many Muslims strive to incorporate the Sunnah into their daily lives as a way to strengthen their faith and live in accordance with Islamic teachings. **

The Islamic Witr prayer is considered a highly recommended Sunnah (tradition) prayer, but it is not obligatory. It is performed after the obligatory Isha prayer and can be prayed in different ways, such as one, three, five, seven, or more odd numbers of rakats. While it is not obligatory, it is highly encouraged for Muslims to perform the Witr prayer as it holds great significance in Islam and is considered a way to seek closeness to Allah. **

Yes, the opening prayer in Islam, known as the Takbir, is considered obligatory in certain prayers. It is recited at the beginning of each unit of prayer (rak'ah) and is an essential part of the prayer ritual. The Takbir serves as a way to begin the prayer and to focus one's mind and heart on worshiping Allah. It is an important aspect of the prayer that helps to establish a connection with the divine. **