[Machine] There is no marriage except with four requirements: a proposal, a guardian, two witnesses. This is an authentic narration except that Qatada did not hear from Ibn Abbas and it has been narrated from another source as weak from Ibn Abbas, with a raised (narration) and what is well-known is that it is attributed to the Prophet ﷺ from another source.
لَا نِكَاحَ إِلَّا بِأَرْبَعٍ خَاطِبٍ وَوَلِيٍّ وَشَاهِدَيْنِ هَذَا إِسْنَادٌ صَحِيحٌ إِلَّا أَنَّ قَتَادَةَ لَمْ يُدْرِكِ ابْنَ عَبَّاسٍ وَرُوِيَ مِنْ وَجْهٍ آخَرَ ضَعِيفٍ عَنِ ابْنِ عَبَّاسٍ مَرْفُوعًا وَالْمَشْهُورُ عَنْهُ مَوْقُوفٌ وَرُوِيَ ذَلِكَ عَنِ النَّبِيِّ ﷺ مِنْ وَجْهٍ آخَرَ