The word(s) "retos" appears 2 time(s) in 2 verse(s) in Quran in Portuguese (Prof. Samir El-Hayek) translation.

(1) Quando os parentes (que não herdeiros diretos), os órfãos e os necessitados estiverem presente, na partilha da herança, concedei-lhes algo dela e tratai-os humanamente, dirigindo-vos a eles com bondade.

(سورة النساء, An-Nisaa, Chapter #4, Verse #8)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) Nobres e retos.

(سورة عبس, Abasa, Chapter #80, Verse #16)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)