Is it permissible to prove an undisclosed partnership (Shirkat al-Muhassah) by all means of evidence if the presented evidence's official source is subject to doubt?

⚡ Quick Answer:

Yes, an undisclosed partnership (Shirkat al-Muhassah) may be proven by all means of evidence. However, the presented evidence must be reliable and of an official source, or supported by strong circumstantial evidence that leaves no room for doubt as to its authenticity. Merely presenting documents whose official source is challenged...