Many thanks for your prompt reply Vinny.
I was looking for the Adequate Maintenance Requirement for Dependent of a Settled Person. I quickly skimmed through Appendix FM, then ended up with another guidance notes, Part 8: Annex F which is also about Adequate Maintenance and Accommodation but with different type of applicants, which I did not notice initially.
After reading thoroughly both documents. It's now clear that:
Part 8 Annex F:
https://www.gov.uk/government/uploads/s ... nnex_F.pdf
A requirement for adequate maintenance has to be met by the following categories of applicant under Part 8 of the Immigration Rules:
Child of a settled person(s)
Paragraph 297 – Indefinite Leave to Enter
Paragraph 298 – Indefinite Leave to Remain
Paragraph 298A – Limited Leave to Remain
Appendix FM Section 1.7A
https://www.gov.uk/government/uploads/s ... x_1_7A.pdf
[i]Child whose parent is applying for entry clearance or leave to remain, or who has leave to remain, as a partner (on a 5-year route to settlement), and where the parent’s partner is in receipt of a specified benefit:[/i]
Saying that, Part 8 Annex F is the guidance note applicable to my case.