not true
Mullah Omar asked the Americans to provide proof.. and asked them whether this proof was enough to convict OBL in a US court and the Americans negotiators clearly said no.
to date Americans provided no proof that OBL was behind 9-11... a fact that General Musharaf said this on record.
I guess you should read the thread from the beginning.
Al-Qaeda declared war on the US in the mid 1990s.
They attacked US Embassies and USS Cole and the US replied by attacking Al-Qaeda bases inside Afghanistan with Cruise Missiles.
After that, (in 1998) Pakistan and SaudiArabia tried to explain to Mullah Omar that they needed to kick out Al-Qaeda to remain neutral. As a non-neutral nation, supporting Al-Qaeda they can legally be attacked by the US.
THREE YEARS LATER, on September 10, 2001, Afghanistan is still harbouring Al-Qaeda, and is thus non-neutral and can legally be attacked by the US.
Al-Qaeda performs their attack on the Twin Towers the next day.
Afghanistan can still legally be attacked by the US.
The US, out of courtesy, give one last chance to Mullah Omar, because even though they legally can attack Afghanistan, they prefer not to, if Afghanistan complied with international law - but no, Mullah Omar is to stupid to realize he is painting himself into a corner and arrogantly asks for evidence.
I have not seen anywhere that he got a reply.
The Afghans paid dearly for his arrogance.
There is a lot of stupid people on internet parroting that the US did not provide evidence. Don’t join them.
Al-Qaeda claimed later responsibility for the attacks so the US were right and Mullah Omar knew they were right - but Jihadists do not care about right and wrong. Their default stance is that Muslims are always right and non-Muslims are always wrong.