Na ji kai
However, depending on the context, you can use different expressions:
* Na ji magana ta kai: This translates to "I heard your words" and is a more formal way of saying "I have heard you."
* Na ji abin da ka ce: This translates to "I heard what you said" and is a more specific way of saying "I have heard you."
It's important to note that Hausa, like many other languages, has different levels of formality. The choice of expression can also depend on who you are speaking to and the situation.