Explanation

Explanation

• The Nisab (minimum limit) for gold is 7.5 tola (87.48 grams).
• The ratio/nisab of Zakat is 2.5%.
• Zakat was made obligatory in 2 A.H.
• It was fully implemented in 9 A.H.

Additional information:

• Silver Nisab: 52.5 tola = 612.36 grams
• The word “Zakat” occurs 32 times in the Holy Quran.
• Zakat means purification and growth of wealth.
• “Zakat is the treasure of Islam” is a famous saying of the Holy Prophet (PBUH).

Last verified on 11-05-2026

Explanation

• After the Battle of Yamama (632 AD), Hazrat Umar (R.A.) suggested compiling the Quran into one collection.
• Hazrat Abu Bakr (R.A.) initially hesitated but later accepted the suggestion.
• Hazrat Zaid bin Sabit (R.A.) was appointed to undertake the compilation.
• The compiled manuscript was kept with Hazrat Abu Bakr (R.A.), then Hazrat Umar (R.A.), and later Hazrat Hafsa (R.A.).

Last verified on 13-09-2026

Explanation

The Battle of Khandaq is also known as the Battle of the Trench and the Battle of the Confederates.

It was a 27-day-long defense by Muslims of Yasrab (now Medina). 

Took place in Shawwal – Dhu al-Qi'dah, 5 A.H (627 C.E).

Last updated by NA on 22-April-2026

Explanation

• Date: 20 Ramadan, 8 AH
• Gregorian date: December 629 / January 11, 630 AD
• Leader: Prophet Muhammad (ﷺ)
• Place: Makkah (Saudi Arabia)
• Occasion: Victory of Muslims over Quraysh

Additional information:

• Prophet Muhammad (ﷺ) entered Makkah on his favorite camel Al-Qaswa (القصواء).
• Usama Ibn Zaid (RA) was sitting behind him.
• On the way, Prophet Muhammad (ﷺ) recited Surah Al-Fath (48th Surah of the Quran).

Last verified on 01-07-2026

Explanation

• A firewall’s main function is to prevent or block unauthorized access to a computer network.
• It acts as a security barrier between trusted and untrusted networks (like the internet).
• It filters incoming and outgoing network traffic based on security rules.
• It helps protect systems from hackers and unwanted access attempts.

Last verified on 10-06-2026

Explanation

• The dollar sign ($) is used to create an absolute cell reference in MS Excel.

Additional information:

• Absolute Reference: $D$2 (Row and column fixed)
• Relative Reference: D2 (Row and column change)
• Mixed Reference: $D2 (Column fixed)
• Mixed Reference: D$2 (Row fixed)
• Shortcut Key: F4 toggles between reference types.

Last verified on 18-07-2026

Explanation

• FTP (File Transfer Protocol) is specifically designed to transfer files between computers over the internet.
• It allows uploading, downloading, and managing files on remote servers.

Last verified on 13-09-2026

Explanation

• COUNTA() counts only non-empty cells in a selected range.
• It counts cells containing numbers, text, logical values (TRUE/FALSE), errors, and formulas that return values.
• It does not count completely empty cells.
• COUNTA() is commonly used for counting filled entries in datasets.

Additional information:

• COUNT() → Counts only numeric cells
• COUNTBLANK() → Counts empty (blank) cells
• COUNTIF() → Counts cells matching a specific condition
• COUNTIFS() → Counts cells matching multiple conditions

Last verified 08-07-2026

Explanation

• Win + R opens the Run dialog box in Windows.
• It allows users to quickly open programs, folders, files, and system tools by typing commands

Additional Information:

• cmd: Opens the Command Prompt.
• notepad: Opens Notepad.
• msconfig: Opens System Configuration.
• control: Opens the Control Panel

Last updated 07-09-2026 by NA