Hudhayfah reported: The Messenger of Allah, peace and blessings be upon him, said, “We have been favored in three ways: Our prayer rows have been made like the rows of angels, the entire earth has been made a place of prayer for us, and its soil is purifying for ablution if one cannot find water.”
Source: Ṣaḥīḥ Muslim 522
Grade: Sahih (authentic) according to Muslim
عَنْ حُذَيْفَةَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فُضِّلْنَا عَلَى النَّاسِ بِثَلَاثٍ جُعِلَتْ صُفُوفُنَا كَصُفُوفِ الْمَلَائِكَةِ وَجُعِلَتْ لَنَا الْأَرْضُ كُلُّهَا مَسْجِدًا وَجُعِلَتْ تُرْبَتُهَا لَنَا طَهُورًا إِذَا لَمْ نَجِدْ الْمَاءَ
522 صحيح مسلم كتاب المساجد ومواضع الصلاة