1. **Qur’an Source:**
لَمَسْجِدٌ أُسِّسَ عَلَى التَّقْوَىٰ مِنْ أَوَّلِ يَوْمٍ أَحَقُّ أَنْ تَقُومَ فِيهِ ۚ فِيهِ رِجَالٌ يُحِبُّونَ أَنْ يَتَطَهَّرُوا ۚ وَاللَّهُ يُحِبُّ الْمُطَّهِّرِينَ
**Surah:** At-Tawbah, Surah 9, Ayah 108
**Translation:**
A mosque founded on righteousness from the first day is more worthy for you to stand in. In it are men who love to purify themselves, and Allah loves those who purify themselves.
**Simple Meaning:**
This ayah talks about a mosque built from the very beginning on goodness and taqwa. Many scholars explain that this points to **Masjid Quba**.
2. **Hadith Source:**
عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: كَانَ النَّبِيُّ ﷺ يَأْتِي قُبَاءً رَاكِبًا وَمَاشِيًا فَيُصَلِّي فِيهِ رَكْعَتَيْنِ. (صحيح البخاري)
**Hadith Source:** Sahih al-Bukhari, Hadith 1193, Sahih
**Hadith Meaning:**
Ibn Umar رضي الله عنهما said that the Prophet ﷺ used to go to Quba, sometimes riding and sometimes walking, and he would pray two rak‘ahs there.
**Simple Explanation:**
This shows the special place of **Masjid Quba**. It is known as the first masjid built in Islam.
3. **Hadith Source:**
عَنْ سَهْلِ بْنِ حُنَيْفٍ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ: مَنْ تَطَهَّرَ فِي بَيْتِهِ، ثُمَّ أَتَى مَسْجِدَ قُبَاءَ فَصَلَّى فِيهِ صَلَاةً كَانَ لَهُ كَأَجْرِ عُمْرَةٍ. (سنن ابن ماجه)
**Hadith Source:** Sunan Ibn Majah, Hadith 1412, Hasan/Sahih in meaning
**Hadith Meaning:**
The Prophet ﷺ said that whoever makes wudu at home, then goes to Masjid Quba and prays there, gets a reward like the reward of an ‘umrah.
**Simple Explanation:**
This hadith shows the honor of Masjid Quba and why Muslims love to visit it.
4. **Scholars’ Explanation:**
Imam Ibn Kathir explained in his tafsir of Surah At-Tawbah that the masjid founded on taqwa is **Masjid Quba**. Imam al-Tabari also mentioned that the verse refers to the mosque built first in Islam with purity and goodness.
**Final Answer:**
The **first masjid** in Islam is commonly known as **Masjid Quba**.
**Takeaway:**
The first mosque was built on taqwa, so Muslims should also build their worship on sincerity and purity.
Allah knows best.