Saheeh

Sahih (Arabic: صحيح, Ṣaḥīḥ) may be translated as "authentic"or "sound."

if hadith has fulfilled the highest conditions of acceptability.

The conditions of a saheeh hadeeth re as follows:

1 – Good character of all its narrators

2 – Good memory and precision on the part of narrators with regard to what they are narrating.

3 – Continuous isnaad from beginning to end, meaning that each narrator heard the hadeeth from the one before him.

4 – The hadeeth is free from any oddness in its isnaad or text. What is meant by “odd” is anything in which the narrator narrates something that contradicts the narration of a sounder narrator.

5 – The hadeeth is free from faults in its isnaad and text. A “fault” is a subtle problem that undermines the soundness of the hadeeth, which can be detected only by the well versed scholars of hadeeth.