The Hadith which fulfills the five conditions of authenticity:
SB (a) EB Its chain (Sanad) is connected, meaning every narrator received it directly from his teacher.
SB (b) EB Every narrator is just (‘Adil’), i.e., avoids major sins, does not persist in minor sins, is of good nature and morals. He is perfect in memory and precision, i.e., preserves the Hadith accurately by writing or memorization and transmits it properly.
SB (c) EB It is not a ‘Shadh’ (contradictory) Hadith.
SB (d) EB It is not ‘Ma‘lul’ (defective).
Explanation of ‘Shadh’ and ‘Ma‘lul’ will follow.