Should I ask?

Hi all, I was referred by my old boss who I used to work with. His new company has an open position and he asked me if i'm interested. I said yes, went through the interviews and now waiting for the result. HR said I would hear back within 48hrs but it's been over a week now since the last call. I sent follow up email to HR but have not heard back. Question: Should I text my old boss to ask for the result? I don't know if it's okay to ask the person who refers you the interview result. Tbh, I don't want to bother him but my curent manager wants to give me a promotion to a senior position. I just want to weight out all the options I have before making the decision. Please let me know what you guys think.

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