Ahmad was banned by Fifa in November for five years after football’s world governing body found him to have breached several of its ethics codes.
The Malagasy appealed his decision at Cas, which issued a preliminary ruling on Friday.
Ahmad is still ineligible to contest Caf’s presidential elections in March however, since the Cas decision came after both the Caf’s Governance Committee and Fifa’s Review Committee met earlier this week to discuss the eligibility of candidates.
Since he was banned when Fifa met on Tuesday and Caf on Thursday, Ahmad was deemed ineligible to run.
Cas says it will hear Ahmad’s appeal in full on 2 March, with a decision issued before the Caf presidential elections on 12 March.
More to follow.