You can find your TxID from the platform you made a withdrawal. For example, you can find the TxID from [Transaction History] on Binance, or through the following steps.
1. Log in to your Binance account. Click [Wallet] and select [Overview] from the drop-down menu.
2. Click [Transaction History]. Here you can see all your deposit or withdrawal history. You can find the TxID under [TxID].
You can also access your transaction history from [Wallets] - [Spot] - [Transaction History] on the Binance App. Tap on the relevant transaction to find the TxID.