Suit par zakaat

Q: Manay ap se ye do sawal pochaya tha jin ka jawab (nahi ) tha. (Meray pas aik fanci suit 6000 ka un -stiched jise paray huay aik saal ho gaya he jo bhai ki shadi k liye lia tha kia is pa zakat h? Or jahez k liye kuch zaroorat k bartan hn un ko bhi saal ho chuka h kia un pa zakat h?) laki agar ye sab aik tolay se zayed sonay k sath ho or saal mukaml ho chuka ho to bhi ki zakat wajib nahi?

Disposing of dead skin, flesh and teeth

Q:

1. Does skin, flesh and teeth become najis when removed from a living human?

2. Must the skin, flesh, and teeth of a living human be buried when removed from the body? For example, when some flesh gets cut off in an injury. Or when a child loses one of his milk teeth.

3. Is it permissible to throw away bloody plasters, tissues, and bandages etc. in the bin?

Explanation of a Hadith

Q: I've came across this Hadith:

Aisha (radhiyallahu anha) reported: A group of Jews asked permission to visit the Prophet (Sallallahu Alaihi Wasallam) and when they were admitted, they said, “Death be upon you!” I said to them, “Rather, death and the curse of Allah be upon you!” The Prophet (Sallallahu Alaihi Wasallam) said, “O Aisha, Allah is kind and he loves kindness in all matters.” I said, “Have you not heard what they said?” The Prophet (Sallallahu Alaihi Wasallam) said, “I said to them: And upon you.” Source: Ṣaḥīḥ al-Bukhārī 6528, Ṣaḥīḥ Muslim 2165

What does the last sentence mean (and upon you?). Does this mean death and curse of Allah be upon those Jews?