Mujahid (may Allah have mercy on him) narrates that Ibn Abbas (may Allah be pleased with them both) was asked about a man who had divorced his wife one hundred times. He said: You have disobeyed your Lord and your wife has separated from you. You did not fear Allah, or Allah would have made a way out for you: "And whoever fears Allah, He will make for him a way out" [Surah al-Talaq: 2], "O Prophet, when you divorce women, divorce them for (the start of) their waiting period" [Surah al-Talaq: 1].
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الخلع والطلاق / 14978