✅ Answer: Please refer to the following narrations:

1⃣عَنْ حَمَّادِ بْنِ عِیسَی عَنْ أَبِی عَبْداللَّه أَنَّهُ قَالَ: مِنْ مَخْزُونِ عِلْمِ اللَّهِ الْإِتْمَامُ فِی أَرْبَعَةِ مَوَاطِنَ حَرَمِ اللَّه وَ حَرَمِ رَسُولِهِ وَ حَرَمِ أَمِیرِ الْمُؤْمِنِین وَ حَرَمِ الْحُسَیْنِ بْنِ عَلِیٍّ

📚 Al-Tahdhib, Vol. 5, p. 430

Imam Al-Sadiq (peace be upon him) said: The complete prayer is reserved for four places: the Haram of Allah, the Haram of His Messenger, the Haram of Amir al-Mu’minin (peace be upon him), and the Haram of Imam Hussain (peace be upon him).

2⃣عَنْ مِسْمَعٍ عَنْ أَبِی إِبْرَاهِیمَ قَالَ: کَانَ أَبِی یَرَی لِهَذَیْنِ الْحَرَمَیْنِ مَا لَا یَرَاهُ لِغَیْرِهِمَا وَ یَقُولُ إِنَّ الْإِتْمَامَ فِیهِمَا مِنَ الْأَمْرِ الْمَذْخُورِ.

📚 Al-Kafi, Vol. 4, p. 524

Imam Al-Kadhim (peace be upon him) said: My father had an opinion regarding the two Harams (Makkah and Madinah) that he did not apply to others, and he would say: Praying the full prayer in them is from the hidden matter.

3⃣ عَنْ عَبْدالرَّحْمَنِ بْنِ الْحَجَّاجِ قَالَ: سَأَلْتُ أَبَا عَبْداللَّه عَنِ التَّمَامِ بِمَکَّةَ وَ الْمَدِینَة فَقَالَ أَتِمَّ وَ إِنْ لَمْ تُصَلِّ فِیهِمَا إِلَّا صَلَاةً وَاحِدَةً.

📚 Al-Tahdhib, Vol. 5, p. 426

Abdul-Rahman said: I asked Imam Al-Sadiq (peace be upon him) about praying the full prayer in Makkah and Madinah. The Imam said: Pray it fully, even if you pray nothing else in them!

4⃣ عَنْ حُذَیْفَةَ بْنِ مَنْصُورٍ عَمَّنْ سَمِعَ أَبَا عَبْدِاللَّهِ یَقُولُ تَتِمُّ الصَّلَاةُ فِی الْمَسْجِدِ الْحَرَامِ وَ مَسْجِدِ الرَّسُولِ وَ مَسْجِدِ الْکُوفَةِ وَ حَرَمِ الْحُسَیْنِ.

📚 Al-Kafi, Vol. 4, p. 586

Imam Al-Sadiq (peace be upon him) said: You complete the prayer in the Masjid al-Haram, Masjid al-Nabi, Masjid Kufa, and the Haram of Hussain (peace be upon him).

5⃣عَنِ الْحُسَیْنِ بْنِ الْمُخْتَارِ عَنْ أَبِی إِبْرَاهِیم قَالَ: قُلْتُ لَهُ إِنَّا إِذَا دَخَلْنَا مَکَّةَ وَ الْمَدِینَةَ نُتِمُّ أَوْ نَقْصُرُ قَالَ إِنْ قَصَرْتَ فَذَلِکَ وَ إِنْ أَتْمَمْتَ فَهُوَ خَیْرٌ تَزْدَادُ.

📚 Al-Kafi, Vol. 4, p. 524

Hussain bin Mukhtar said: I asked Imam Al-Kadhim (peace be upon him): When we enter Makkah and Madinah, should we pray fully or shorten it? The Imam replied: If you shorten it, it is fine, but if you pray fully, it is better that you have added goodness.

6⃣عَنْ عَلِیِّ بْنِ یَقْطِینٍ قَالَ: سَأَلْتُ أَبَا إِبْرَاهِیمَ عَنِ التَّقْصِیرِ بِمَکَّةَ فَقَالَ أَتِمَّ وَ لَیْسَ بِوَاجِبٍ إِلَّا أَنِّی أُحِبُّ لَکَ مَا أُحِبُّ لِنَفْسِی.

📚 Al-Kafi, Vol. 4, p. 524

Ali bin Yaqtin said: I asked Imam Al-Kadhim (peace be upon him) about shortening the prayer in Makkah. The Imam said: Pray it fully, and it is not obligatory unless what I love for myself, I also love for you!

7⃣عَنْ مُعَاوِیَةَ بْنِ عَمَّارٍ قَالَ سَمِعْتُ أَبَا عَبْدِاللَّهِ یَقُولُ مَا بَیْنَ لَابَتَیِ الْمَدِینَةِ ظِلِّ عَائِرٍ إِلَی ظِلِّ وُعَیْرٍ حَرَمٌ

📚 Ma'ani al-Akhbar, p. 338

Muawiyah bin Ammar said: I heard Imam Al-Sadiq (peace be upon him) say: Between the two mountains of Madinah, from the shadow of Mount A'ar to the shadow of Mount W'u'ir, is the Haram.

8⃣عَنْ أَبِی الْعَبَّاسِ یَعْنِی الْفَضْلَ بْنَ عَبْدِالْمَلِکِ قَالَ: قُلْتُ لِأَبِی عَبْداللَّهِ حَرَّمَ رَسُولُ اللَّهِ الْمَدِینَةَ فَقَالَ نَعَمْ حَرَّمَ بَرِیداً فِی بَرِیدٍ غَضَاهَا

📚 Al-Faqih, Vol. 2, p. 563

Abu Abbas said: I asked Imam Al-Sadiq (peace be upon him): Did the Messenger of Allah (peace be upon him) declare Madinah as a Haram? He replied: Yes! A four-mile area in all four directions was declared as a Haram, and the cutting of the Ghazā trees is prohibited there.

✅ In the above narrations and others, it is evident that praying the full prayer is emphasized for travelers in Masjid al-Haram, Masjid al-Nabi, as well as in the city of Makkah and Madinah, and in the boundaries of the Haram of Makkah and Madinah, even though there are also some narrations allowing shortening the prayer.

Thus, in Masjid al-Nabi and throughout the boundaries of the city and Haram of Madinah, one can pray the full prayer.

✅ Regarding the boundaries of the Haram of Madinah, including from the shadow of Mount A'ar to the shadow of Mount W'u'ir, and also the four miles in all four directions, etc., the narrations suggest that based on all of them, Masjid Quba falls within the area where the full prayer can be performed. Therefore, it is best for the traveler to pray their prayer fully in Masjid Quba.

اللَّهُمَّ صَلِّ عَلَی مُحَمَّدٍ وَ آلِ مُحَمَّدٍ وَ عَجِّلْ لِوَلِیِّکَ الْفَرَجَ وَ الْعَافِیَةَ وَ النَّصْر

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