Answered by: Alimah Sofia Mirza
Can one 7-part animal have a Fardh Qurbani and a Sadaqah Qurbani together?
I believe in Hidayah there is something to say it cannot be done.
In the name of Allah, the Most Gracious, the Most Merciful
It is permissible to share the animal in 7 shares if it is a big animal like a cow or such, they all must have the intention of either the Fardh or Nafl Qurbani and the intention of sacrifice for the sake of Allah otherwise it will not be permissible, however according to the opinion of Abu Hanifah it is Makruh if they all have different intentions and the best would be to have the same intention. In direct response to your question, it will be allowed to do so.
Only Allah knows best.
Written by Alimah Sofia Mirza
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham
 Fatawa Hindiyyah, Darul Kutub al Ilmiyyah, Vol 5, Pg.375-376
لو ارادوا القربة الاضحية او غيرها من القرب اجزأهم سواء كانت القربة واجبة او تطوعا