Smoking weed

Q: My brother has smoked weed and me and my family are very worried, will this mean his duas won't be accepted for 40 days?

What is the ruling and is weed really bad?

Doubting if one's salaah is valid

Q: While I was reading my asr salaah,my brother and i were reading together and i was imam,i felt a urine drop come out but i carried on and finished the salaah.After the salaah I checked to see if any urine drops came out but i didn't see anything. This incident happened a while ago but now I'm thinking that I need to repeat the salaah because I'm sure that a urine drop came out and after the salaah i didn't check my underpants properly.Do i need to repeat the salaah?

Reward for reciting a certain durood

Q:

اللهم صل على سيدنا محمد ما اختلف الملوان وتعاقب العصران وكر الجديدان واستقبل الفرقدان وبلغ روحه وارواح اهل بيته منا التحية والسلام

Whoever recites this durud thrice, will receive the reward of reciting salutations 30 000 times. Can one make such statements? Mawlana mentioned in accordance to tajrabah of a dream. He didnt say it was a hadeeth. Also, can one have such aqeedah that by doing such, it will happen.

Beautifying oneself at home

Q: I know that changing the creation of Allah Ta'ala is haraam, but I want to ensure one thing that if I beautify myself at home will it be haraam? My mom keeps telling me that its not haraam if I do it at home. I wear niqaab and I try not to show myself to anyone (I used natural elements). My face is darker than my body so I am really confused.

Using animals for medical research

Q: Is the animal research where mice and pigs are the subjects of medical research involving giving them certain experimental medicine as a trial before trying it on humans to see the adverse effects of the medicine or killing them for the purpose of research or as an ultimate end point of research permissible?

What if it is done with an intention of human benefit as humans cannot be the trial subjects in the frst phase of the research when adverse effects of a medication or intervention is not known and if animlas are not tried, research projects cannot go on and newer medical interventions/medications, diagnostic tools and treatment will not evolve. Is this kind of research considered to be a zulm on animals?