How to identify which master has initiated the transaction in UVM TB

In reply to dave_59:

The transactions here are of AXI and master 1 or master 0 use these transactions . In test case master is decided on type of seqr started before starting particular sequence.

I use
m_sys_config_seq.set_axi_seqr (n1_seqr); for master 1

  m_sys_config_seq.set_axi_seqr (n_seqr);  for master 0 

then in the test case
m_sys_config_seq.axi_write32('hC1000000, wr_data);

I can print which master using it from test case but what about to print the master curretly sending transaction