Hawzah News Agency – Imam Sadiq peace be upon him says:

إنّ اللَّهَ تباركَ وتعالى‏ لَيُبْغِضُ المُنَفِّق سِلْعتَهُ بالأيْمانِ.

'Allah, Blessed and most High, loathes the one who promotes his commodity by oaths.'

Source: Amali al-Saduq, p. 390, no. 6