Explanation

Baal-e-Jibril  is a philosophical poetry book by Allama Muhammad Iqbal

Bal-i-Jibril  publish in 1935

while

Iqbal's first book of poetry in Urdu, Bang-i-Dara (1924), was followed by Bal-i-Jibril in 1935 and Zarb-i-Kalim in 1936.