أَحْسَنُ اللهِ عَلَيْكُمْ sheikh around 3 years ago I bought a mouse and a keyboard, I payed them $10 less and told them that I will pay in a month's time or so. Later both the me and the seller forgot about this payment, do I have to pay them now ?

Ustadh AbdulAziz al-Haqqan

Yes