Sure. Anyone with nukes could give them to anyone else, but what happens after? If someone gave Iran nukes, then what's to stop the US or France or somebody giving nukes to Ukraine or Taiwan. Ultimately it's too big a risk. Even if two countries are close allies now doesn't mean they will always be, and the nukes can't be taken back once given.

Unless they are extremely selfless and are willing to give up the few nuclear bombs they could craft themselves to Iran (which broadcasts publicly that they refuse to build nukes on a religious level) it would both

1. Validate actions of the external threats
2. Create mistrust in the public for not following with their anti-nuke fatwa
3. Still, Leave them without the capability to build MORE nukes

if Iran wanted nukes, it would have publicly tested five out by the time the Israeli attacks came

what

They can but there is no point; just emailing the technical details would be enough for 99%.

They only would need to ship the urchins and those could be carried on luggage for any plane that they can get their hands on.

do they even have nukes? im sure they tested it, but china doesnt want NK nukes anymore than russia does. china might help iran with nukes though, a simple balance against israel/west. as they did with pakistan(helped them develop it) to balance out india.