"Whoever prays in the Masjid of the Messenger of Allah (ﷺ) (that is good), for I heard the Messenger of Allah (ﷺ) say: ' One prayer offered there is better than a thousand prayers offered elsewhere, except the Masjid of the Ka'bah.'"
Sunan an-Nasa'i Book 8, Hadith 4
← Previous Hadith "I used to recite Qur'an to my father on the road, and if I recited a verse in which prostration was required, he would prostrate. I said: 'O my father, do you prostrate on the street?' He said: 'I heard Abu Dharr say: "I asked the Messenger of Allah (ﷺ): 'Which Masjid was built first?' He said: 'Al-Masjid Al-Haram.' I said: 'How long was there between them?' He said: 'Forty years. And the earth is a Masjid (or a place of prostration) for you, so wherever you are when the time for prayer comes, pray.'"

In Makkah. "Furthest Masjid", meaning the Masjid in Jerulsalem.

Sunan an-Nasa'i Book 8, Hadith 3 Next Hadith → "The Messenger of Allah (ﷺ) entered the House (the Ka'bah), with Usamah bin Zaid, Bilal and 'Uthman bin Talhah, and they locked the door behind them. When the Messenger of Allah (ﷺ) opened it, I was the first one to enter. I met Bilal and asked him: 'Did the Messenger of Allah (ﷺ) pray inside?' He said: 'Yes, he prayed between the two Yemeni columns.'"

Sunan an-Nasa'i Book 8, Hadith 5