Respected Hakeem Sahab, Assalamoalaikum! I have two Amals (Practices) for lost things. 1. My gold ring was lost two times and both the times I recited

رَبُّ الْمَشْرِقِ وَ الْمَغْرِبِ لَآ اِلٰہَ اِلَّا ہُوَ فَاتَّخِذْہُ وَکِیْلًا ﴿مزمل۹

Constantly and got my ring back.

2. The tested practice of Ubqari

بِسْمِ اللہِ الرَّحْمٰنِ الرَّحِیْمِ  اِنَّا لِلہِ وَاِنَّااِلَیْہِ رَاجِعُوْنَ۔

I lost my bag in market and after one hour of reaching home I get to know that the bag was not in my stuff. I recited the above mentioned constantly and went back to the same way I came home. I found my bag. It was rush in the surroundings but no one saw the bag and when I picked it up, than people noticed. (Irshad Akhtar Qadri, Wah Cantt).