Hi Lal,
I think it is this post:”Gati to Bhava to Jāti – Ours to Control“.
The information is found under the section: What Are Āsāvās (Cravings)?
Specifically: …explained that indeed āsāvās contribute to avijjā, and vice versa. and: …four of the eight “basic units of matter” in a suddhāshtaka arise due to avijjā and the other four due to tanhā (which arise due to āsāva). Avijjā and tanhā are called “bhava-mūla” for this reason.
Thank you very much once again for always helping to answer my queries!