A testimony is statement made in order to prove something. Typically, testimony is given in a courtroom by a witness. Or, testimonies are used in advertisements to sell products. <> furucin gaskiyar wani, shaida ko hujjargaskiya, tabbaci.
The eye-witness testimony of the robbery was enough for the jury to believe that the suspect was guilty.
Many late night advertisements contain testimonies of everyday people who claim that this product "Worked for me!".
In this way it is more likely that witnesses will give true testimony<> wannan ne yafi dacewa don qarfafa zuciya na samun shaidargaskiya --Qur'an 5:108