Allamah Basheer al-Deen Usmani Qinnawji [r.h] has brought forward many statements of ulama in his Tafheem al-Masail regarding istighatha with the belief of hadhir nadhir. Fatwa of Shaykh Hamid al-Deen Nagori [r.h] was posted earlier.
1. He also mentions a fatwa of Mullah Hussain Khabaaz [r.h]:
واز كلمات كفر است ندا كردن اموات غائبان را بگمان آنكه حاضر اند مثل يا رسول اللّه ويا عبدالقادر ومانند آں
“To call upon the dead with the belief that they are hadhir[listening to us] by uttering statements like Ya Rasool Allah and Ya Abdul Qadir etc are kufr.”
[Tafheem al-Masail ba-hawala Maftah al-Quloob from Jawahir al-Tauheed, p.273]