Is a divorced wife entitled to her husband's pension?
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful
A divorced woman will inherit from her husband if he dies when she is in iddah from a revocable divorce (talaq Raji’), I.e. during the iddah after the first or second divorce.
She will also inherit from him in the case of an irrevocable divorce (talaq ba’in), if he divorced her in this manner during a terminal illness. i.e if he divorced her thrice during his terminal illness. The divorced woman will not inherit, in any circumstances, after the termination of her iddah.
Therefore, if you are entitled to inheritance due to falling into the categories above, then the pension and all other wealth would be shared with you and the other inheritors according to the shariah.
This entitles the wife to a quarter of the total inheritance in the case where they have no children together or one eighth in the case where there are children.
Only Allah knows best
Written by Maulana Moinul Abu Hamza
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham
 Al-Hidayah, Imran Nyazee version, volume 2, page 745
 Al-Hidayah, page 739
 Mukhtasar al-Qudoori, Tahir Kiani’s translation, page 709