Shortening the Prayer
Muwaṭṭa' Mālik 385
اللَّهُمَّ اغْفِرْ لَهُ اللَّهُمَّ ارْحَمْهُ فَإِنْ قَامَ مِنْ مُصَلاَّهُ فَجَلَسَ فِي الْمَسْجِدِ يَنْتَظِرُ الصَّلاَةَ لَمْ يَزَلْ فِي صَلاَةٍ حَتَّى يُصَلِّيَ
Allāhumma āghfir lah Allāhumma ārḥamhu fa-in qāma min muṣallāhu fajalasa fī al-masjidi yantaẓiru aṣ-ṣalāha lam yazal fī ṣalātin ḥattā yuṣalliya
Transliteration generated from the Arabic vowel marks
The full narration
Yahya related to me from Malik from Nuaym ibn Abdullah al-Mujmir that he heard Abu Hurayra say, "If any one of you prays and then sits down in the spot where he has prayed, the angels ask blessings on him saying, 'Allah, forgive him. Allah, have mercy on him.' And if he moves from the spot where he has prayed and sits elsewhere in the mosque waiting for the prayer, he remains in prayer until he prays
Source
Muwaṭṭa' Mālik · 385
- Salim al-Hilali: Mauquf Sahih