Series Regarding the Number of Rakah for Taraweeh
No 4. It is not established from Umar – RadhiAllahu anhu – that he prayed twenty Rakah
Shaykh Albaani commented after researching the narrations’ of Umar which mention twenty Rakah saying:
‘This chain which mentions the word ‘twenty’ is the foundation of those who say it is permissible to pray twenty Rakah in the Salatul Taraweeh, its Isnad is apparently authentic, and this is why some of them authenticated it, however, it has a defect, rather defects which prevent saying it is authentic and makes it weak and rejected.’
[Salatul Taraweeh – Albaani p.49]