Seyed Ali Shobayri, Seyed Ali Shobayri is of mixed Iranian and Scottish descent who found the path of the Ahlul Bayt (a) by his own research. He holds a BA in Islamic Studies from Middlesex University through the... Answered 2 years ago
Bismillah,
Asalamu Alaykom,
The action itself is sinful even if ejaculation isn’t reached however it is ejaculation which would break the fast.
May Allah grant you success