I was the imam for a Maghrib prayer and while reciting an ayah from al-Kahf I ended it with "Muslim" instead of "walam yaj'al lahu iwaja"
Then I asked my ma'mum to do Sujud Sahw, but they rejected the idea of doing so.
But I performed it anyway but am now afraid that I have sinned not only on my behalf but also of my ma'mum. Did I do the right thing? Have I sinned?