[Machine] Allah Almighty said: "And call as witnesses two witnesses from among your men. And if there are not two men [available], then a man and two women from those whom you accept as witnesses - so that if one of the women errs, then the other can remind her. And let not the witnesses refuse when they are called upon. And do not be [too] weary to write it, whether it is small or large, for its [specified] term. That is more just in the sight of Allah and stronger as evidence and more likely to prevent doubt between you, except when it is an immediate transaction which you conduct among yourselves. For then there is no blame upon you if you do not write it. And take witnesses when you conclude a contract. Let no scribe be harmed or any witness. For if you do so, indeed, it is [grave] disobedience in you. And fear Allah. And Allah teaches you. And Allah is Knowing of all things." (Surah Al-Baqarah, 2:282)

And they are not those whom We accept. (Surah Al-Qasas, 28:25)

He said, "So I sent to Ibn Zubayr to ask him, and he said, 'By the free will [of Allah].' When they were asked to testify, he said, 'I have not seen any judicial ruling except in accordance with what Ibn Zubayr said.'"  

قَالَ اللَّهُ ﷻ {مِمَّنْ تَرْضَوْنَ مِنَ الشُّهَدَاءِ} [البقرة 282] وَلَيْسُوا مِمَّنْ نَرْضَى قَالَ فَأَرْسَلْتُ إِلَى ابْنِ الزُّبَيْرِ أَسْأَلُهُ فَقَالَ بِالْحَرِيِّ إِنْ سُئِلُوا أَنْ يَصْدُقُوا قَالَ فَمَا رَأَيْتُ الْقَضَاءَ إِلَّا عَلَى مَا قَالَ ابْنُ الزُّبَيْرِ