Fast was obligatory in 2nd Hijri.
Muslim keep fast in month of Ramzan
Ramadan is divided into three stages-first Ashra (Rehmat), second Ashra (Maghfirat) and the third Ashra (Nijaat).

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Must remember all 12 Islamic months name

List of Islamic Months

1. Muḥarram, محرم الحرام
   
2. Ṣafar, صفر المظفر
3. Rabi al Awwal ربیع الاول
4. Rabi al Sani ربیع الثانی
5. Jumada al Awwal جمادی الاول
6. Jumada al Thani جمادی الثانی
7. Rajab, رجب المرجب
8. Shabanشعبان المعظم
9. Ramadan(fasting), رمضان المبارک
10. Shawwal شوال المکرم
11. Dhu al Qadah ذوالقعدۃ الحرام
12. Dhu al Hijjah ذوالحجۃ الحرام:

Each month begins approximately at the time of the new moon.

agm.04.03.23

• Zarb-e Azab. 'Azb' refers to one of the seven swords of the Holy Prophet (PBUH) that he carried along in the Ghazwaz of Uhad and Badr to strike hard infidels.
• Operation Radd-ul-Fasaad Launched on February 22, 2017,
  
• the intensive nationwide operation against terror groups steered
• by Army Chief General Qamar Javid Bajwa
• Operation Zarb-e-Azb started by Army Staff General Raheel Sharif 
• Operation Zarb-e-Azb start from 15 June 2014 till 22 February 2017
• Location: Pakistan, North Waziristan Agency, Federally Administered Tribal Area, Karachi, Balochistan, Punjab
• RK11-12-22

Umar ibn al-Khattab was the second caliph of the Rashidun Caliph from 634 to 644 CE.

During the earlier period, there was a great dearth of horses.

Most of the horses had been killed in early battles.

In the time of Hazrat Uthman things had changed.

Hazrat Yousaf (AS) was put into the jail by the king of Egypt. He remained behind the bars for  5 years.

Hazrat Yousaf (AS) remained in the well for 3 DAYS.

Ø  Real name of Shah Waliullah: Qutubuddin Ahmad Syed.

Ø  Shah Waliullah first time in history translated the Holy Quran in Persian Language

Ø  Shah Wali Ullah was born in the reign of Aurangzeb,

Ø  Shah Waliullah Dehlawi Born in 21 February 1703 Phulat, Mughal Empire

Ø  Shah Waliullah Dehlawi Died in 20 August 1762 (aged 59) Dehli, Mughal Empire